Restoring RCA 7-EY 1DJ 45 Player

6/19/2011 2:28:48 PMRay Francis

Looking for a schematic for an RCA7-ey 1DJ
This is A 2 tube unit (50L6GT & 35W4)
Chassis #:RS155CVRG274710
Also wondering if this has a 3 volt cartridge.
Thank You

6/19/2011 8:34:56 PMJohnnysan

:Looking for a schematic for an RCA7-ey 1DJ
:This is A 2 tube unit (50L6GT & 35W4)
:Chassis #:RS155CVRG274710
:Also wondering if this has a 3 volt cartridge.
:Thank You
:

I will scan the Sams and email it to you.
Johnnysan-

6/19/2011 9:55:56 PMWarren

The original cartridge was one of those salt crystal ones. It's probably bad by now. It did have an output of near 3 volts. You can use a newer ceramic type cartridge that will fit the tone arm. I am sending you a little preamp circuit that you can make easy.

6/20/2011 4:51:12 PMRay Francis

:The original cartridge was one of those salt crystal ones. It's probably bad by now. It did have an output of near 3 volts. You can use a newer ceramic type cartridge that will fit the tone arm. I am sending you a little preamp circuit that you can make easy.
:
I get the cartridge going bad, but The unit has 2 tubes
so I thought it may have a lesser voltage.

I've been sent a couple of Sams but they are for 1 tube
units.
Is there a way to look up a sam by the chassis number?

Chassis Number is RS155CRVG274710.

Could you use the preamps that are for connecting magnetic cartridge turntable to a line input on the newer recievers.

Thank You for all the info.
Ray

6/20/2011 5:38:13 PMWarren

Your set having two tubes the 35W4 is only a rectifier. The 50L6 is a single tube amplifier.

6/20/2011 7:27:05 PMRay Francis

:Your set having two tubes the 35W4 is only a rectifier. The 50L6 is a single tube amplifier.

Thank you,
the only way to find out is to ask.
Ray

6/20/2011 7:58:22 PMRay Francis

:Looking for a schematic for an RCA7-ey 1DJ
:This is A 2 tube unit (50L6GT & 35W4)
:Chassis #:RS155CVRG274710
:Also wondering if this has a 3 volt cartridge.
:Thank You
:
this unit's schematic shows a 25L6GT tube,but I don't see the 35w4 rectifier tube, only a silenium rectifier
would they have replaced one with the other during the model run?

6/20/2011 9:12:43 PMWarren

There is no Sams for the set like yours. Your set was probably an early run. It would be cheaper to use a diode in place of the rectifier tube. The sets with the diode are nearly identical. Very simple amplifier.

6/22/2011 9:25:57 AMRay Francis

:Looking for a schematic for an RCA7-ey 1DJ
:This is A 2 tube unit (50L6GT & 35W4)
:Chassis #:RS155CVRG274710
:Also wondering if this has a 3 volt cartridge.
:Thank You
:
Found a website that has sams but they are in a djvu format.
here is the web address:techpreservation.dyndns.org/schematics/rca.htm.

You can get a plugin by typing what is a djvu file,
there's a plug in for your browser, you need to be online to view and print.
Anyway I couldn't find anything in the 7-ey's to match my set.
I am trying to read all the components so I can replace the caps, but there's one wax cap that's in the corner with the values facing down, this is paper and wax, all I can read on it without taking it out is the number 735721174.
There are 3 caps including the multi with 3 leads.

6/22/2011 1:58:08 PMWarren

Make your own simple drawing of where the capacitors connect. Take close up pictures if you can do that. This is such a simple amplifier, you really don't need the actual schematic.